diff --git a/CHANGES.txt b/CHANGES.txt
index 0651f16..2c4b975 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -65,6 +65,8 @@
  
 BUG FIXES
 
+PIG-5072: e2e Union_12 fails on typecast when oldpig=0.11 (knoguchi)
+
 PIG-3891: FileBasedOutputSizeReader does not calculate size of files in sub-directories (nkollar via rohini)
 
 PIG-5070: Allow Grunt e2e tests to run in parallel (knoguchi)
diff --git a/test/e2e/pig/tests/nightly.conf b/test/e2e/pig/tests/nightly.conf
index da7528d..323583f 100644
--- a/test/e2e/pig/tests/nightly.conf
+++ b/test/e2e/pig/tests/nightly.conf
@@ -1518,8 +1518,8 @@
             {
             # Union + operators
             'num' => 12,
-            'pig' => q\a = load ':INPATH:/singlefile/studentnulltab10k' as (name, age:int, gpa:double);
-b = load ':INPATH:/singlefile/studentcolon10k' using PigStorage(':') as (name, age:int, gpa:double);
+            'pig' => q\a = load ':INPATH:/singlefile/studentnulltab10k' as (name:chararray, age:int, gpa:double);
+b = load ':INPATH:/singlefile/studentcolon10k' using PigStorage(':') as (name:chararray, age:int, gpa:double);
 c = union a, b;
 -- Exercise all expression operators --
 d = foreach c generate (name is not NULL? UPPER(name) : 'FNU LNU') as name, (age < 30 ? -1 : age) as age, (gpa is NULL ? 0.0 : ((gpa > 0.5 AND gpa < 1.0) ? 1 : gpa)) as gpa;